[e2e] Internet packet dynamics

[Cottrell, Les]

Fig.  2 in http://www.slac.stanford.edu/xorg/icfa/icfa-net-paper-jan04/ shows the packet losses seen by the PingER project (see http://www-iepm.slac.stanford.edu/pinger/) from the US to various regions of the world since Jan 1995.  Other metrics can also be seen in the same web page (e.g. RTT and derived throughput ~ 1460Bytes/(RTT*sqrt(loss)).

-----Original Message-----
From: David G. Andersen [mailto:dga at lcs.mit.edu] 
Sent: Friday, March 12, 2004 6:44 PM
To: Sam Liang
Cc: end2end-interest at postel.org
Subject: Re: [e2e] Internet packet dynamics

On Fri, Mar 12, 2004 at 04:46:27PM -0800, Sam Liang scribed:
> 
>   Vern Paxson's excellent Sigcomm 97 paper, "End-to-End Internet 
> Packet Dynamics", told us a lot about the Internet traffic 
> characteristics. But seven years have passed. The Internet has changed 
> a lot. In particular, the packet loss rate has dropped a lot. But it's 
> not zero.  Are there any recent work that study the current Internet 
> traffic patterns, such as packet loss rates?

 Quite a few.  You can get some packte loss numbers in a more recent IMC paper of mine, and I'm sure there are numerous other sources:

  http://nms.lcs.mit.edu/papers/bestpath-imc2003.html

  As you assume, the loss rate we observed in 2002-ish is much lower than observed by Paxson97.  The e2e loss numbers we observed in the 2001 RON study were also quite a bit lower than those that Paxson saw.  Those 5 years were a pretty good period for internet bandwidth growth and technological improvement.

  -Dave

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work: dga at lcs.mit.edu                          me:  dga at pobox.com
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